Home / 36,731.20-55,076.32-13,358.40

Finding the Fourth Proportional to 36,731.20, 55,076.32 and 13,358.40

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Solution

The fourth proportional to 36,731.20, 55,076.32 and 13,358.40 is: 20,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,731.20 : 55,076.32 = 13,358.40 : x
  2. Step 2: Convert to fraction form
    36,731.20/55,076.32 = 13,358.40/x
  3. Step 3: Cross multiply
    36,731.20x = 55,076.32 × 13,358.40
  4. Step 4: Simplify right side
    36,731.20x = 735,731,513.09
  5. Step 5: Solve for x
    x = 735,731,513.09/36,731.20
  6. Step 6: Final answer
    x = 20,030.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.